Furnace Concepts Inc.

A bubbler tube is used in molten glass process tanks where the injection of air at various locations in the molten bath can enhance the quality of the glass and efficiency of production. The Cermet bubbler tube is made of high purity (Molybdenumdisiliside) which is stable in the molten glass to temperatures of 2800° F. The material will not dissolve or add any impurities or color to the molten glass. By injecting air into the molten glass bath the temperature of the bath becomes more uniform. Without this technique temperature variations 0f 400° F are common from top to bottom. In order to compensate for this glass manufacturers increase the glass temperature to insure the molten state throughout. By using bubbler tubes and the gas flow creates mild turbulence which will allow the temperature in certain areas to be reduced thus reducing maintenance caused by excess temperatures. This can also reduce fuel consumption simultaneously.
In all glass processes Bubbling promotes improved homogeneity which enhances many characteristics of the finished clarity and color. This has a positive effect on production rates and yield.